Quote:
Originally Posted by TonyV2382
Dont worry this problem is typical for someone new to this car. If you are using the stock diff halves they can melt right on to the pulleys. The stock diff halves are plastic and hold these metal plates. As friction builds up, the plastic melts around the metal plates and also can cause the pulley itself to melt or get destroyed.
What you need is 501x diffs in the front and the rear. OR, more affordable and just as good, you can get the 3racing Heavy Duty diffs from ebay... http://cgi.ebay.com/3Racing-Alum-Dif...item2ea67ea4d5
The 3racing diffs are metal through and through. No plastic pieces to melt or break. Also they are quite a bit larger than the stock ones so they cover more of the pulley and rest better on the diff balls....which btw you should get the TRF ceramic ones... http://cgi.ebay.com/Tamiya-TRF-3mm-C...item51921efaa8
These balls are a heck of a lot more durable and have less friction than the stock ones. They also last so much longer. I used to run a MM7700 and I never had issues. Always make sure your slipper is set correctly and also check to make sure that the pulleys in the center arent missing any teeth either. You never know 
Once you get all this sorted out (and hopefully for the last time) you are ready to rock again. And you wont have this issue come up. As a tip when you do get the HD diffs do not glue the metal plates to the diff halves. Just use the AW grease Tamiya gives you to secure the plate on. No gluing is needed and if you have any questions just ask. |
Thanks for the quick response! I've already ordered the 3Racing diff halves and ceramic balls. I thought the slipper would have done the trick but I guess theres just too much heat.
So no glue on the steel plates with the metal diff halves - got it!
One more question. Do I need to use that special diff ball grease that came with the kit? The pathetically small tube is empty.
Thanks!